1991 mecury capric keeps shutting down. has a new fuel pump and ignition modual on 1991 Mercury Capri

1991 mecury capric keeps shutting down. has a new fuel pump and ignition modual , runs a minute or so then stalls out again. wait awhile and it starts up and shuts off

1 answer
battery is good? try change fuel filter? try cleaning fuel system(ethanol fuel treatment)?